Abstract: A chemical reactor for catalytically processing a fluid feed stream comprises a reactor vessel incorporating a structured catalyst bed, and additionally comprises one or more catalytically active, fluid-permeable seals provided in gaps between the catalyst bed and the walls of the reactor vessel to treat portions of the fluid feed stream otherwise by-passing the structured catalyst for treatment.

Abstract: A gauging system is provided for measuring glass flatness and thickness, in which a glass sheet is accurately supported on a reference plane, and fiber optic sensors are lowered toward the glass to sense the location of the upper and lower surfaces of the glass sheet. The sensors send signals, which are representative of the locations of the surfaces, to a central processing unit which is used to calculate thickness and/or flatness of the glass sheet.

Abstract: Disclosed herein is a method for producing a honeycomb body having a side surface bounded by a closed cylinder of a selected circumference and curvature comprising the steps of providing an extruded honeycomb body having a selected length and having a side surface bounded by a closed cylinder of a circumference larger than the selected and desired circumference; and removing material from the side surface to reduce the circumference thereof at least to the selected circumference. The instant invention's step of removing material from the side surface comprises grinding the side surface with a rotating abrasive means having a length at least equal to the selected length and an axis of rotation parallel to the side surface. Furthermore, the rotating abrasive means is attached to a spindle means which allows and controls movement of the rotating abrasive means in a plane perpendicular to the axis of rotation.